Attaching device



June 24, 1947. w, -MCARTHQR 2,422,693

ATTACHING DEVICE I Filed Sept. l5, -1944 fal Patented .lune v24, 11947 AITACHING DEVICE Warren McArthur, Bantam, Conn., assignor, by f mcsne assignments, to Reconstruction Finance Corporation, New York, N. Y., a corporation of the United States Application September 15, 1944, Serial No. 554,284

Claims.

Ilhis invention relates to an attaching device, and in its more speciiic aspects, to an attaching deviceV that is adapted to be removably secured to a member.

An object of this invention is the provision of a device that may be readily attached to and subsequently detached from a member, such as the door, wall or ceiling of a vehicle without the use of tools.

Another object of this invention is to provide a device of the character indicated that is adapted to be used with cables, ropes, hooks or the like in maintaining merchandise vin predetermined regions within a vehicle'.

It is a further object of this invention to provide a removable attaching device that remains in attached position and does not become disengaged upon being subjected to jars, vibrations or impacts.

A still further object of the invention is to provide a relatively lightweight inexpensive attaching device that is simple and sturdy in construction.

The device of this invention is in the nature of a securing means that may be readily and positively placed in engagement with a suitable opening in the floor, wall or ceiling of a vehicle and that is provided with a means adapted to engage a rope', cable and the like' for fastening cargo within the Vehicle. The opening in which my device is removably disposed is preferably in the form of a bayonet slot. One or more bayonet slots 'may be provided in the floor, wall or ceiling of the vehicle or may be provided in plates secured in or to such floors, walls or ceilings.

These, as well as other objects, together with the advantages obtainable by the practice of this invention, will be apparent upon reference to the following detailed description and accompanying drawings which pertain to a preferred embodiment of the invention.

In the drawings:

Figure 1 is a top plan view of the device of this invention attached to a member such as a plate;

Figure 2 is a vertical cross-sectional View taken along line 2-2 of Figure 1;

Figure 3 is a view similar to ,Figure 2 illustrating another relative position of the parts;

Figure 4 is a top plan view of a member and depicting a bayonet slot extending therethrough; and

Figure 5 is a view of the attaching device in side elevation.V

Reference is now had to the drawing wherein like numerals indicate corresponding parts in the several views. For the purpose of describing the invention, I have illustrated a member l0 which may be in the nature of a plate having a bayonet slot II extending therethrough. The bayonet slot preferably comprises an enlarged arcuate portion I 2 and a portion I3 of reduced width. Plate l0 ls adapted to be secured in a suitable opening provided in the floor, wall or ceiling of a vehicle or other type of structure by means of screws (not shown) passing through apertures I4. It is to be understood that bayonet slot II may, if desired, be formed directly in a floor, wall or the like as desired.

A base plate I5 is provided with an opening I6.

A post I1 extends through opening I6 and is affixed to base plate I5 by soldering or in any other way known to the art. It will be observed that a portion of post I 'I projects above the upper face surface of base plate I5 while another portion projects below the lower face surface of the base plate. The -upper portion of post I1 is provided with an arcuate passage to pivotally receive a connector or ring I9. The lower portion of post I1 is formed with a lock head 20 and-an annular groove or recess 2|. Recess 2I is adaptedy to register withvportion I3 of the bayonet slot as shown in Figure 2. y

Base plate I5 is provided with a second opening 22. A hollow and preferably cylindrical casing 23 is open at its lower end and is provided with a wall 24 having a passage 25 at its upper end. The lower end of casing 23 is disposed in opening 22 and is attached to the base plate by soldering or otherwise. A plunger or piston 26 is lreciprocable in casing 23 and carries an upwardly projecting rod 21 that extends through opening 25 in wall 24. A compression spring 28 concentric With rod21 is positioned within casing 23 and bears against the upper end of plunger 26 and end wall 24 to normally urge plunger 26 in a downward direction. Y

A knob 29 embraces the upper end of rod 21 and is secured thereto by a pin 30. As is best shown in Figure 2, the lower end of knob 29 abuts wall 24 to limit downward movementof rod 21 and plunger 26. Knob 29 may be manually operated to move rod 21 and plunger 26 upwardly against the action of spring 28 to the position shown in Figure 3.

Base plate I5 and the equipment connected thereto may be readily attached to and subsequently detached from member IIJ'by a procedure that will now be briefly described.` Lock head 20 of post I1 is inserted in enlarged portion I2 of the bayonet slot and plunger 26 is moved upward'lyr in casing 23 to the position shown in Figure 3. Base plate I5 is then 4slid along the upper surface of member I until recess 2I registers with portion I3 of the bayonet slot. Base plate I5 is then moved along the upper face surface of member I0 until plunger 28 registers with portion l2 of the 'bayonet slot, at which time the plunger is urged into said portion I2 by spring 28, thereby effecting locking engagement.

In order to detach post I'I from member Il), knob 29 is manually operated against the action of spring 28 to move plunger 28 upwardly and' out of portion I2 of the bayonet slot. The base plate is then slid along member Iil until post I'I is in the position shown in Figure 3, at which time lock head 28 may be withdrawn through portion I2 of the bayonet slot.

Based on the foregoing, it is believed that the objects, advantages and construction of my in,- stant invention will be readily apparent to persons skilled in tlf-1e art, -Itis to be borne in mind, however, that various changes in the `apparatus herewith illustrated and described may be resorted to Without departing from the spirit of this invention or the scope of the sub-joined claims.

I claim:

1. Ina device of the character described, a iirst unit comprising e member having a `bayonet slot extending` therethrough, a second unit comprising a base, a post connectcdl t0 the base and including a heed portion, seid post having a recess formed therein intermediate the head por tionand the base and registering with the bayonet Slot in the region of the recess, e plunger movable tliroughthe bese in one direction and registering with the bayonet slot when the are in normel engagement, and means 4for moving the plunger in the 'opposite direction to rernove the plunger from tbelooyonet slot when eiiecti-ng olisengegement between the uni-ts.

42J e olevice of. the character described, a first unit comprising e member having a, bayonet slot extending therethrough, a second unit comprisins a bese, a post connectedA to the bese and including e heed portion, seid post having a recess formed therein intermediate the head portion andthe base and registering with the lbayonet slot in the region of the recess, a plunger movable through. the bese one direction and registering with the Jbayonet slot when the units are in nor-mal engagement, resilient means urging the plu-neer through the bese in said. one direction, and means for moving the plunger in the opposite direction against the action of the resilient means to remove the plunger from the bayonet, slot when effecting disengagement between the units.

3V. In a device of the character described, a irst unit comprising a member having a bayonet slot extending therethrough, a second unit comprising a base, a post connected to the base and including a head portion, said post having a recess formed therein intermediate the head portion and the base and registering with the bayonet d slot in the region of the recess, a plunger movable through the base in one direction and registering with the bayonet slot when the units are in normal engagement, means for moving the plunger in the opposite direction to remove the plunger from the bayonet slot when eiecting disengagement between the units, and means independent of the post lfor limiting movement of the plunger with respect to the base in said one direction,

4. In a device of the character described, a first unit comprising a member having a bayonet slot extending therethrough, a second unit cornprising a base having an upper face surface and a lower face surface, a post carried by the base, a first portion of the post projecting above said upper face surface and a second portion of the post projecting below said lower face surface, a connector pivotally coupled to said first portion, said post being recessed in said second portion yand vregistering with the ,bayonet slot in the region of lthe recess, a plunger carried by the base, resilient means for moving the :plunger downwardly through the base andebeyond said lower face surface to efectrregistration between the plunger and the bayonet slot when the units are in normal engagement, and means for moving the plunger upwardly through the base to remove the plunger from the bayonet -slot when effecting disengagement between the units.

5. In a device of the character described, a first unit comprising a member having a bayonet slot extending therethrough, a second lunit comprising a base having an upper `face surface and a lower vface surface, a post carried by the base, a rst portion of the post .projecting above said upper face surface and a second portion of the .post projecting below said lower face surface, a connector pivotally coupled to said rst portion, said post being recessed in said second :portion and registering with the -bayonet slot in the region of the recess, Aa .plunger carried by the base, resilient means 'for moving the plunger downwardly through the base and beyond said lower face sllriace` to eiect registration between the plunger and the bayonet slot when the units are in normal engagement, vmeans independent of the post for limiting said downward movement of the plunger, andmeans operable from above the base for moving 'the plunger upwardly through the base to remove the. plunger from the bayonet sloij,` when effecting disengagement between the units.

WARREN MCARTHUR.

REFERENCES CITED The following references are of record in -the -le of this patent:

UNTED STATES PAEENTS Number Name Date 821,851 Bowling f r May 29, A1906 988,558 England v Apr. 4, 1911 1,119,252 Donnell i Y Dec. -1, -19-14 

